South St. Paul, Minnesota, United States [City]; population was 20,197 in 1990; housing units was 8,294 in 1990; location is 44°53'N 93°2'W; land area is 5.73 square miles (3,668 acres); water area is 0.40 square miles (259 acres); FIPS code is 61510 [SourceCBP]